'''
@Company: TWL
@Author: xue jian
@Email: xuejian@kanzhun.com
@Date: 2020-04-09 19:30:15
'''
import sys

inpath = sys.argv[1]

max_auc = 0.0
weight = ''

with open(inpath, 'r') as f:
    for line in f:
        if '=' not in line:
            continue
        lineArr = line.strip().split('=')
        auc = float(lineArr[1])
        if auc > max_auc:
            max_auc = auc
            weight = lineArr[0]

print(weight + '=' + str(max_auc))